Cozy 90N30-A Challenger Vented Floor Heater 30K BTU NOTE - Out of stock until summer 2016 The Cozy Challenger provides warm even heat all winter long through the natural convection of circulating warm air. Cozy's scientific design assures a high volume air exchange, guaranteeing uniform temperatures from floor to ceiling. Specifications:Type Gas NaturalBTU Input Per Hour 30,000Width and Length 14" x 32"Height Overall 29 1/4"Grille Size Overall 16" x 34-1/8"Size of Floor Opening 14-1/4" x 32-1/4"Gas Pipe Size at Furnance 1/2"Vent Pipe Opening 4"Floor to Center of Vent 22"